Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c32a30d00901c19…

MALICIOUS

PDF

63.9 KB Created: 2020-09-08 11:39:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bde578151e4cb9735350cae12faeab7 SHA-1: 6e42c8f97c30101ab9e54bd1e839b83606f1c160 SHA-256: 5c32a30d00901c1908a086103716db11d5fff4dd3e9a9dcae0d902b41234e170
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on external services. The primary link directs users to a known malicious redirector infrastructure at 'https://ttraff.me/wix?keyword=adaraya+agamaki+live+song'. The document body itself is heavily obfuscated and contains the same malicious URL and benign-looking PDF links, suggesting a lure to a malicious site. No scripts were extracted, but the presence of numerous links and the malicious redirector strongly indicate a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.me/wix?keyword=adaraya+agamaki+live+song
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/01d500_a0f9517bf59749abb5be0b2048e6efe8.pdf
    • https://static.usrfiles.com/ugd/135178_0cea1cee40b44d7ea68947b8a66ba78a.pdf
    • https://static.usrfiles.com/ugd/b96e41_8af77ee0c4954b8b9c98430de5f64113.pdf
    • https://static.usrfiles.com/ugd/48f461_72e9cd19b0de44c191edba1c53d46272.pdf
    • https://cdn.shopify.com/s/files/1/0440/6562/0118/files/devapepewilusime.pdf
    • https://cdn.shopify.com/s/files/1/0437/5255/4657/files/97251693844.pdf
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/20394707066.pdf
    • https://cdn.shopify.com/s/files/1/0432/3888/3495/files/5413659431.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/logical_reasoning_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0470/9882/2806/files/4935451796.pdf
    • https://cdn.shopify.com/s/files/1/0431/9651/4461/files/java_substring_examples.pdf
    • https://cdn.shopify.com/s/files/1/0431/3156/8290/files/aetna_better_health_of_va_provider_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/81927317278.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/beths_sixth_form_admissions.pdf
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/mepemukanamibeg.pdf
    • https://cdn.shopify.com/s/files/1/0439/8658/3710/files/54253994678.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://sinhala.sourceforge.net/
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITS
    • http://www.gnu.org/licenses/gpl-2.0.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000662e.bin
4eeb271bde23f269d54bf71ff0553854eb44ae446a1b5e1f2ca62d20722ee255		 pdf-font-stream PDF embedded font (sfnt) at offset 0x662E 5360 bytes
font_01_sfnt_off00007826.bin
0306e31db20f9705813518afa5a35f4b99da7fbf505639b5bd7a08a802044fdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7826 22112 bytes
font_02_sfnt_off0000ae3b.bin
cfb31da5c4e56028d6d658dc0f2e454801f6dd76162716c8e089584816d3c60e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE3B 3100 bytes
font_03_sfnt_off0000ba32.bin
212c956174128f8da26a5eee2d66ff82297f01315a0d8fd8c4e68c8b027d8329		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA32 10116 bytes
font_04_sfnt_off0000dcc0.bin
43254c6337662e76ed67025008a42d76121bee43b935a85a5f582473253d5118		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC0 16096 bytes

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